This study aimed to develop a thematic-based big book media as a means of visual learning styles of students in grade IV Elementary Schools. This research was conducted in Elementary School in class IV several 20 students with details of 10 students in a limited trial. In the learning process still using conventional methods, the use of media is not optimal and there are no media that contains some learning material. This type of research uses a model modified by Sugiyono. This model consists

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... 6 stages, namely problem analysis, data collection, product design, design validation, design revision, and product trials. The instrument used was a questionnaire sheet for media validation by lecturers and teachers as well as student questionnaire sheets. Based on data analysis, it can be concluded that the quality of the developed big book media is in the proper category with a percentage of 80% of media experts, a very feasible category with a percentage of 88% from 2 material experts, and 93.33% of linguists. Student responses to the big book media in the trial with 10 respondents amounted to 85.4% with a very good category. This big book media is said to be appropriate because it can overcome the problems that exist in elementary schools. very feasible category with a percentage of 88% from 2 material experts, and 93.33% of linguists. Student responses to the big book media in the trial with 10 respondents amounted to 85.4% with a very good category. This big book media is said to be appropriate because it can overcome the problems that exist in elementary schools. very feasible category with a percentage of 88% from 2 material experts, and 93.33% of linguists. Student responses to the big book media in the trial with 10 respondents amounted to 85.4% with a very good category. This big book media is said to be appropriate because it can overcome the problems that exist in elementary schools.